Electrical vibrator.



PATENTED JUNE 30, 1908.

M. K. GOLDEN.

ELECTRICAL VIBRATOR. APPLICATION FILED FBB.19, 190a.

WITNESSES:

NlKXIMfllfAN K. GOLDEN, on SAN FRANCISCO, CALIFORNIA.

nLE'cTRIca L v'rrinacroit.

Patentii'Ju'n'e so, 1902?.

3. .z\;-.. 3.1;. .e, .Lr; -J 1:- Application filed February 19, 1908. Serial No. 416,745.

To ll izubeirijt hia gj .Be it known that. I, MAxI In'rAnK, G01:

' DEN, oitizenof thellnited .States re'sidi ng. in

thacity andcounty of.,San..,F. M 899 a d State :of Qaliforuia, hav inven ed newand usefullmprovements in Electrical Vibrators, of which the .follo'wing'is ,a specification.

My, inventionrelates to an electrically acuated vibrating'devicew It consists in a ombi at on .f rt bend in details of construction, which will be more fully explained by reference to the accom panying drawings inwhich g "-.,F 1 gu 1'6 L is a horizontal section or plan View with the cap removed. Fig. 2 is a ver ticalsectionof the 'same.

It isthe; obj ectof. my inven ion t prod ce a vibrating device which may be 0 erated by an electrical current, .without ,t e use of sparking device, induction current, or make and break mechanism, such as is. usuallyemployed for such, devices; ,and it includes a means for greatly increasing the power of the ap aratus.

tv is applicable for the moving of reciprocating parts of any kind which .can be so moved, such as the ringing. of bells, the actuating of massage or percussion implements, or anything of a like character.

As shown in the present structure, A is an inclosin sh'ellwhich is adapted to contain a plura ity of electro-magnets, as 2 and 2?. One or more ofthe magnets 2 is mounted upon a yielding or spring arm, or equivalent 3, which is here shown fixed at one side, as at 4, within the casing A, so that by means of this movable arm the ma net itself is capable of motion in unison with the movement of the arm.

. The arm 3 is formed continuously with an arm or bar 3 which extends across the interior ofthe case behind the magnets 2, and has its opposite end-secured to the interior of the case opposite to the fastening 4, as shown at 4". One or more magnets 2 are mounted upon the fixed arm 3 substantially parallel with the movable magnets 2. The movable arm 3 carries an armature in line with the core of the electro magnet 2. 8 is another armature which is fixedtothe bar 3, and acts in conjunction with the electro magnet 2. As the electro magnet 2 is mounted upon the vibrating arm 3, it will be seen that as it is alternately energized and deenergized, the armature being stationa the ma net 2 will be alternately attracted to, an released I weigh e the. rmatu At h am t me, the circuit being also completed through the electro mag wh h tat nary, i willattract its armature 8*, which is carried uPQn the v a g a 0 tha I emp y the double power of the magnets 2 an 2 actin upon the same vibrating arm 3. This greatly increases the powerof the a paratus. 7 It will be seen that theweight o the elec tro magnet 2 adds a very considerable force he: peratio .Qf. he Y bratin arm and y n W i hm y b ca r e l e r. n or er to regulate and control the amphtude of t v ra nsj 0f t arm a e shown .a rod or ,s tem 13 which extends h ide t cas t n e s threa edend terminating near the arm 3. A The outer end of the screw 13 may have am le head,. ther y eeb w h it can beturned, without advancing, being prevented by a collar 14 fixed to it inside the case ,The inner screw-threaded part is m b .i i. e pql senal. t 5 whi fit loosely in an opening in the arm 3. Between this nut 15 and the vibrating arm 3 is a spiral spring 16 which incloses the screw stem, and its ends may contact with the arm and with the nut respectively. By turning the screw, the nut '15 may be advanced to compress the spring and increase its tension and pressure upon the vibrating arm, and by retracting the nut, the tension and pressure I,

is corres ondingl reduced.

In or er to ho d the screw 13 and nut at any desired point, the sides of the collar 14 contact with an elastic arm or spring 17, so.

that whenever the screw is turned, an portion of a revolution, the fiat side of the collar contactin with the spring, will be held and prevente from further turning.

The part to be moved by the movement of the spring 3 may either be in direct line, by means of a rod so disposed with relation to the arm 3 that it will be actuated with direct push bysuch vibrations, or it may be connected directly with vibrating arm as at 18.

A direct connection is shown by means of an arm having the inner end fixed to the vibrating arm 3, and itself extending through an opening 7 in the side of the case; and this outer end has attached to it any implement or device towhich it is desired to impart a vibrating motion. Thus, an implement attached to the end of the direct arm would be moved longitudinally, providing .a reciprocating or percussion movement bf such to it, while the action of the second magnet 2 a g in u 'son with the 'case A maybe. 'rovided with a handle 10,

which is preferab introduction of the cable 9, which is bells in connection with telephones,

-the usual, or any suitable manner, as shown sary inductioncurrent strength as might be" desired. It attached, on'the other hand, to the end of the arm, 6, it would receive a transverse movement; and the weight of the electro magnet carried upon the movable arm insures a positive move-' ment, by reason of the momentum imparted vibratory arm fixed at one end, having the free end adapted to carry an implement or tool, a magnet carried by said arm, a station- -ary armature coactin'g with the magnet, a second and stationary magnet, and an armature therefor carried by the arm, said magnets coacting when energized. A

2. In an apparatus for producing vibratory movements, an arm fixed at one end whereby it may vibrate, means fonconnecting the free portions of the arm with implements or tools to be actuated, an electro magnet fixed to, and movable with, the arm, a stationary armature coacting with said magnet, a second and stationary magnet, and an armature carried by the arm and coacting with said second magnet.

3. A device for regulatin the amplitude of vibration, said device inc uding a vibrating arm, a screw in the line of vibration and turnable through a movable nut, a spiral first, adds great strength to the movement. 7

As illustrated the present device, the

y hollow, and serves for the c0m-- posed of separate insulated wires, which wires are connected with the magnet coils in The construction is very asmuch as I am able to dispense with the make and break mechanism, with the necesand sparking device, which may be thus entirely'eliminated.

The apparatus may be employed to ring and by reason of the considerable power which it has, it can be used in various percussion movements, such as dental hammers, and the like w Havingthus described my invention, what I claim and advantageous, in-

brating arm,

the screw is retained at any point of adjustment.

Intestimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

MAXn/nLIA K. GOLDEN.

desire to secure by Letters Patent is Witnesses:

1. An apparatus for producing vibratory CHARLES A. PENFIELD, movements, said apparatus consisting of a S. H. NOURSE. I

spring disposed between the nut and the viand a locking device whereby 

